MALICIOUS
252
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous links, many of which point to disposable hosting and redirector infrastructure, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded links, such as 'https://yafferge.ru/strik?utm_term=first+90+days+learning+plan+template', are likely used to redirect users to phishing or malware download sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://yafferge.ru/strik?utm_term=first+90+days+learning+plan+template In PDF document text
- http://muxoman.mygamesonline.org/82904434878.pdfIn PDF document text
- http://kijofizovurisos.medianewsonline.com/hydrogenation_of_alkenes.pdfIn PDF document text
- https://nilukosezaxed.weebly.com/uploads/1/3/0/8/130814529/0998801c0.pdfIn PDF document text
- https://waxitajoxozaner.weebly.com/uploads/1/3/4/4/134474673/dufunuwego_nolusoriru.pdfIn PDF document text
- http://zereteleriw.getenjoyment.net/41325665730.pdfIn PDF document text
- http://melidagerukebel.sportsontheweb.net/cavite_mutiny_filipino_version.pdfIn PDF document text
- http://tepifugamokeg.medianewsonline.com/purevpn_server_list.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/feef10a3-cdd3-4fa2-9399-af7d5efb6eec/fazurorekogusa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b3768fd2-a423-472c-943d-b6e5b85893ed/the_journal_entry_to_record_the_purchase_of_merchandise_on_account_would_include.pdfIn PDF document text
- https://s3.amazonaws.com/dabatisew/rimworld_ice_sheet_survival.pdfIn PDF document text
- https://a91873a8-1f5b-4151-915d-af39eb211f25.filesusr.com/ugd/3f80ec_55a461b4ba9b4b76880731ae02a20d47.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6d1c0e4d-f472-404e-a137-babb3b9f5e5c/dusux.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6f5ae0c0-5aad-40a1-983a-b5b5686e0c99/the_far_side_of_jericho_full_movie.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d7495d8e-a3c2-4dd8-bec3-b1045ed3763e/92779810450.pdfIn PDF document text
- https://s3.amazonaws.com/bufipevuril/92207408329.pdfIn PDF document text
- https://0fc0baf9-b884-4fcd-968e-f93c0f938930.filesusr.com/ugd/68ec51_04e81fb9c1684c55be99e30af1234713.pdf?index=trueIn PDF document text
- http://bofekid.epizy.com/space_jam_2.pdfIn PDF document text
- https://ca6b24e6-01cd-4368-a310-1df05077a315.filesusr.com/ugd/11b39a_63f17ae42b774034bf9ddbcc86d4e13e.pdf?index=trueIn PDF document text
- http://vipuwizu.epizy.com/98417148586.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fa58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA58 | 5632 bytes |
SHA-256: f16f463ec7679fbf273952d4f34240d9df58334391651dd143ce37b0371caa5a |
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font_01_sfnt_off00010d78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D78 | 10884 bytes |
SHA-256: 946c8bc2a9dd4015738efcd2213657cbef9f765f8cdb64260803a692bff731f3 |
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